Results 141 to 150 of about 375,405 (243)

Algebraic Approach to Maximum Likelihood Factor Analysis. [PDF]

Psychometrika
Fukasaku R, Hirose K, Kabata Y, Teramoto K.   +3 more
europepmc   +1 more source

Improving Implied Volatility Forecasts for American Options Using Neural Networks

Journal of Futures Markets, EarlyView.
ABSTRACT This paper explores the application of neural networks to improve pricing of American options. Focusing on both American and European options on the S&P 100 index from January 2016 to August 2023, we integrate neural networks to model the difference between market‐implied and model‐implied volatilities derived from the Black‐Scholes and Heston
Haitong Jiang, Emese Lazar, Miriam Marra
wiley   +1 more source

On equivalence of algebraic and finite element formulations of prestressed bar structures. [PDF]

Sci Rep
Pełczyński J.
europepmc   +1 more source

Robust Tests of Forecast Accuracy for Factor‐Augmented Regressions With an Application to the Novel EA‐MD‐QD Dataset

Journal of Applied Econometrics, EarlyView.
ABSTRACT We present four novel tests of equal predictive accuracy and encompassing á Pitarakis (2023, 2025) for factor‐augmented regressions. Factors are estimated using cross‐section averages (CAs) of grouped series and our theoretical findings are empirically relevant: asymptotic normality, robustness to an overspecification of the number of factors,
Alessandro Morico, Ovidijus Stauskas
wiley   +1 more source

A unified Haar wavelet collocation framework for fractional volterra integro-differential equations with application to tumor-immune dynamics modeling. [PDF]

Sci Rep
Hamood MM, Sharif AA, Ghadle KP.
europepmc   +1 more source

Signed Projective Cubes, a Homomorphism Point of View

Journal of Graph Theory, EarlyView.
ABSTRACT The (signed) projective cubes, as a special class of graphs closely related to the hypercubes, are on the crossroad of geometry, algebra, discrete mathematics and linear algebra. Defined as Cayley graphs on binary groups, they represent basic linear dependencies.
Meirun Chen, Reza Naserasr, Alessandra Sarti   +2 more
wiley   +1 more source

Energy-dissipative adaptive-step L1 discretisation for the Caputo time-fractional incompressible magnetohydrodynamic system. [PDF]

Sci Rep
Abidin MZ.
europepmc   +1 more source

Effectiveness and safety of ustekinumab in pediatric Crohn's disease: Results of the REALITI study

Journal of Pediatric Gastroenterology and Nutrition, EarlyView.
Abstract Objectives Few approved treatments exist for children with Crohn's disease (CD). The REALITI study retrospectively assessed the effectiveness and safety of ustekinumab in real‐world clinical settings for children with CD. Methods Data were collected from the prospective ImproveCareNow (ICN) registry for pediatric patients (≥ 2 to <18 years old)
Steven J. Steiner, Jeremy Adler, Shehzad A. Saeed, Richard S. Strauss, Kristin M. Howe, Anna Sheahan, Renping Zhang, Kimberly R. Keihn, Katharine Harrow, Kelly K. Olano, David A. Evans, Kim Hung Lo, Nanhua Zhang, Lilianne Kim, Richard B. Colletti, Sheri Volger, for the ImproveCareNow Learning Health Network, Sabina Ali, Rana Ammoury, Keren L. Appel, Travis Ayers, Howard Baron, Julie Bass, Rachel Bensen, Erica J. Brenner, José Cabrera, Mallory Chavannes, J Fernando del Rosario, Jill Dorsey, Dana M. H. Dykes, Dawn R. Ebach, Bhaskar Gurram, Dyer Heintz, Leslie M. Higuchi, Edward J. Hoffenberg, Jeannie S. Huang, Esther Jacobowitz Israel, Traci W. Jester, Ian Kang, Ian Leibowitz, Tiffany Linville, Ross M. Maltz, Craig A. McKinney, Lybil B. Mendoza Alvarez, Phillip Minar, Tina Morhardt, Alisa J Muñiz Crim, Barbara Joanna Niklinska‐Schirtz, Daniel M. O'Connell, Helen Pappa, Brad Pasternak, Trusha Patel, Meryl K. Perlman, Kelly C. Sandberg, Marc E. Schaefer, Robbyn E. Sockolow, David L. Suskind, Gitit Tomer, Jeanne Tung, Amanda A. Wenzel, Denise D. Young   +60 more
wiley   +1 more source

Innovative Aboodh-based gractional analytical methods for nonlinear Burgers' partial differential equations. [PDF]

Sci Rep
Iqbal N, Aldhabani MS, Haleemzai I, Zaidi HN, Hussain S, Mukhtar S, Mohammed WW.   +6 more
europepmc   +1 more source

Precision Restoration to Minimize Soil Loss in a Watershed in the Atlantic Forest Domain

Land Degradation &Development, EarlyView.
ABSTRACT The Turvo River Watershed, located in the Zona da Mata region of Minas Gerais and part of the Doce River Basin, faces serious problems of erosion and soil degradation, which compromise and reduce the quality of local water resources. Given this scenario, it is essential to implement environmental recovery strategies that prioritize the ...
Rodrigo Nobre Santana, Luíza Maria Affonso Lopes da Silva, Sady Júnior Martins da Costa Menezes, Getúlio Fonseca Domingues, Carlos Antônio Alvares Soares Ribeiro, Plinio Antonio Guerra Filho, Alexandre Rosa dos Santos   +6 more
wiley   +1 more source